diff --git a/tg/tg_database.py b/tg/tg_database.py
index 8571738..92616a2 100644
--- a/tg/tg_database.py
+++ b/tg/tg_database.py
@@ -10,7 +10,7 @@ class TgDatabase(database.BasicDatabase):
             id BIGINT NOT NULL,
             owner_id BIGINT NOT NULL,
             api_token VARCHAR(64) NOT NULL,
-            ai_prompt VARCHAR(4000) DEFAULT NULL,
+            ai_prompt VARCHAR(2000) DEFAULT NULL,
             group_chats_allowed TINYINT NOT NULL DEFAULT 1,
             private_chats_allowed TINYINT NOT NULL DEFAULT 1,
             PRIMARY KEY (id))
@@ -23,7 +23,7 @@ class TgDatabase(database.BasicDatabase):
             active TINYINT NOT NULL DEFAULT 0,
             rules VARCHAR(4000),
             greeting_join VARCHAR(2000),
-            ai_prompt VARCHAR(4000),
+            ai_prompt VARCHAR(2000),
             PRIMARY KEY (bot_id, chat_id),
             CONSTRAINT fk_chats_bots FOREIGN KEY (bot_id) REFERENCES bots (id) ON DELETE CASCADE ON UPDATE CASCADE)
         """)
diff --git a/vk/vk_database.py b/vk/vk_database.py
index 86e32a2..883feee 100644
--- a/vk/vk_database.py
+++ b/vk/vk_database.py
@@ -10,7 +10,7 @@ class VkDatabase(database.BasicDatabase):
             id BIGINT NOT NULL,
             owner_id BIGINT NOT NULL,
             api_token VARCHAR(256) NOT NULL,
-            ai_prompt VARCHAR(4000) DEFAULT NULL,
+            ai_prompt VARCHAR(2000) DEFAULT NULL,
             group_chats_allowed TINYINT NOT NULL DEFAULT 1,
             private_chats_allowed TINYINT NOT NULL DEFAULT 1,
             PRIMARY KEY (id))
@@ -25,7 +25,7 @@ class VkDatabase(database.BasicDatabase):
             greeting_join VARCHAR(2000),
             greeting_rejoin VARCHAR(2000),
             birthday_message VARCHAR(2000),
-            ai_prompt VARCHAR(4000),
+            ai_prompt VARCHAR(2000),
             PRIMARY KEY (bot_id, chat_id),
             CONSTRAINT fk_chats_bots FOREIGN KEY (bot_id) REFERENCES bots (id) ON DELETE CASCADE ON UPDATE CASCADE)
         """)